accessory cell

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Related to accessory cells: Antigen presenting cells

accessory cell

[ak′ses·ə·rē ‚sel]
(botany)
A morphologically distinct epidermal cell adjacent to, and apparently functionally associated with, guard cells on the leaves of many plants.
(immunology)
Any nonlymphocytic cell that helps in the induction of the immune response by presenting antigen to a helper T lymphocyte.
References in periodicals archive ?
We used a T-lymphocyte proliferation assay to estimate the macrophage function as accessory cells.
This syndrome is believed to be due to binding between certain portions of the antibody constant region and Fc receptors on accessory cells.
The Role of Accessory Cells in Tumor Angiogenesis (Takakura)